🩺 Nursing Question of the Day

Challenge yourself with one exam-style nursing question every day.

✅ Think carefully • ✅ Choose your answer • ✅ Then scroll down to check the explanation.

🫁 Flail Chest – Paradoxical Chest Wall Movement

✅ Answer: (B) Flail Chest

📖 What is Flail Chest?

Flail = Loose or unstable
Chest = Thoracic cage

👉 Flail chest is a serious chest injury that occurs when two or more adjacent ribs are fractured in two or more places, creating a free-floating segment of the chest wall.

This unstable segment moves independently from the rest of the chest during breathing.

🩺 Why is Option (B) Correct?

The hallmark sign of flail chest is paradoxical chest wall movement:

• ✔ During inspiration → the injured chest segment moves inward
• ✔ During expiration → the injured segment moves outward

This abnormal movement reduces ventilation and can lead to severe respiratory distress and hypoxemia.

❌ Why Other Options Are Wrong?

(A) Pulmonary Embolism
❌ Causes sudden dyspnea, chest pain, tachycardia, and hypoxemia, but does not produce paradoxical chest wall movement.

(C) Hemothorax
❌ Hemothorax is the accumulation of blood in the pleural cavity, causing reduced breath sounds and respiratory distress, but not paradoxical chest movement.

(D) Cardiac Tamponade
❌ Cardiac tamponade results from fluid accumulation around the heart. Classic findings include Beck’s triad (hypotension, muffled heart sounds, and distended neck veins), not paradoxical chest wall movement.

📝 Common Chest Trauma Conditions

📌 Exam Tip: Paradoxical chest wall movement is the hallmark sign of flail chest. Initial management includes high-flow oxygen, adequate pain control, respiratory support, and mechanical ventilation if respiratory failure develops.